package com.checker.springcloud.service;

import cn.hutool.core.util.IdUtil;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.PathVariable;

import java.util.concurrent.TimeUnit;

@Service
public class HystrixPaymentService {

    public String paymentInfo_OK(Integer id) {
        return "线程池" + Thread.currentThread().getName() + " id：" + id;
    }

    @HystrixCommand(fallbackMethod = "paymentInfo_TimeoutHandler", commandProperties = {
            @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds", value = "5000")})
    public String paymentInfo_Timeout(Integer id) {
        int time = 4000;
//        int age = 10/0;
        try {
            TimeUnit.MILLISECONDS.sleep(time);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        return "线程池" + Thread.currentThread().getName() + " id：" + id + " 睡眠" + time;
    }

    public String paymentInfo_TimeoutHandler(Integer id) {
        return "线程池" + Thread.currentThread().getName() + " id：" + id + " 8001超时";

    }

    //    服务熔断
    @HystrixCommand(fallbackMethod = "paymentCircuitBreaker_fallback", commandProperties = {
            @HystrixProperty(name = "circuitBreaker.enabled", value = "true"),//是否开启断路器
            @HystrixProperty(name = "circuitBreaker.requestVolumeThreshold", value = "10"),//请求数量
            @HystrixProperty(name = "circuitBreaker.sleepWindowInMilliseconds", value = "10000"),//时间窗口
            @HystrixProperty(name = "circuitBreaker.errorThresholdPercentage", value = "60")//失败率达到多少
    })
    public String paymentCircuitBreaker(Integer id) {
        if (id < 0) {
            throw new RuntimeException("id 不能为负数");
        }
        String uuid = IdUtil.simpleUUID();
        return Thread.currentThread().getName() + "调用成功" + "流水号" + uuid;
    }

    public String paymentCircuitBreaker_fallback(Integer id) {
        return "id不能为负数 ：" + id;
    }
}
